Hydrogen Effect on the Defect Structure Formation in the Zr – 1 WT.% Nb Alloy Under Pulsed Electron Beam Irradiation

I. P. Mishin, G. P. Grabovetskaya, E. N. Stepanova, R. S. Laptev, A. D. Teresov

Research output: Contribution to journalArticle

Abstract

Using the methods of X-ray structural analysis and electron and positron spectroscopy, it is found out that an irradiation of the surface of a Zr – 1 wt.% Nb specimen with an electron beam in the melting mode results in the formation of lamellar α+α′-structure, an increase in the dislocation density, a dissolution of the β-Nb phase, and the formation of defects of the vacancy-impurity type. The presence of hydrogen in the alloy irradiated with an electron beam favors the formation of complex hydrogen-vacancy complexes in the surface layer along with dislocations.

Original languageEnglish
Pages (from-to)854-860
Number of pages7
JournalRussian Physics Journal
Volume62
Issue number5
DOIs
Publication statusPublished - 1 Sep 2019

Fingerprint

electron beams
irradiation
defects
hydrogen
structural analysis
electron spectroscopy
positrons
surface layers
dissolving
melting
impurities
spectroscopy
x rays

Keywords

  • defects
  • hydrogen
  • pulsed electron beam
  • zirconium alloy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Hydrogen Effect on the Defect Structure Formation in the Zr – 1 WT.% Nb Alloy Under Pulsed Electron Beam Irradiation. / Mishin, I. P.; Grabovetskaya, G. P.; Stepanova, E. N.; Laptev, R. S.; Teresov, A. D.

In: Russian Physics Journal, Vol. 62, No. 5, 01.09.2019, p. 854-860.

Research output: Contribution to journalArticle

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AU - Laptev, R. S.

AU - Teresov, A. D.

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AB - Using the methods of X-ray structural analysis and electron and positron spectroscopy, it is found out that an irradiation of the surface of a Zr – 1 wt.% Nb specimen with an electron beam in the melting mode results in the formation of lamellar α+α′-structure, an increase in the dislocation density, a dissolution of the β-Nb phase, and the formation of defects of the vacancy-impurity type. The presence of hydrogen in the alloy irradiated with an electron beam favors the formation of complex hydrogen-vacancy complexes in the surface layer along with dislocations.

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